The irwin blue groove 4x flat bit delivers drilling performance four times faster than standard flat bits through advanced cutting geometry engineered for timber applications. The patented groove point and cutting edge cut cleanly rather than scrape wood fibres. The parabolic scoop design optimises chip removal and drilling control throughout operation. An increased relief angle from 12 to 17 improves cutting efficiency, while the 10% larger diameter shank provides added durability in demanding use. This 8mm diameter flat bit features a 152mm shank length, combining speed and precision for professional and workshop drilling tasks. Suitable for carpenters, joiners and general timber work requiring rapid, clean boring. Features & benefits: four times faster drilling than standard flat bits for increased productivity. Patented groove point and cutting edge cut cleanly without scraping timber. Parabolic scoop optimises chip removal and operational control. Increased relief angle from 12 to 17 for improved cutting efficiency. 10% Larger diameter shank for improved durability in demanding applications. Ideal for carpentry, joinery, construction and workshop timber drilling tasks. Diameter: 8mm. Length: 152mm.